PHP制作图型计数器的例子

<?
//存放计数的文本文件
$count="count.txt";
//计数器的位数，如果不填则默认为6位
$wei="";
//图像的URL路径
$tu="http://127.0.0.1/tcount/images";
?>
<?
if ($wei=="") { $wei=6; }
if (!file_exists($count)) { $fp=fopen($count,"w+"); fputs($fp,0,100); fclose($fp); }
if ($REMOTE_ADDR!=$ip)     {
$fp=fopen($count,"r+");
$cc=fgets($fp,100);
$cc=trim($cc);
if ($cc=="") { $cou=1; }
else { $cou=$cc+1; }
rewind($fp);
fputs($fp,$cou,100);
fclose($fp);
                             }
setcookie("ip",$REMOTE_ADDR,time()+800);
$fp=fopen($count,"r+");
$cou=fgets($fp,100);
$cou=trim($cou);
fclose($fp);
$w=strlen($cou);
while($w<$wei) {
$cou="0".$cou;
$w++;
                }
$www=strlen($cou);
$i=0;
echo "document.write(\"<p align=center>\");\n";
while($i<$www) {
$ym=substr($cou,$i,1);
echo "document.write(\"<img src=$tu/$ym.gif>\");\n";
$i++;
  }
?>